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Dataset Title:	EMODPACE - NMDIS Water level data of Chinese Oceanographic Stations (monthly data)
Institution:	National Marine Data and Information Service,Ministry of Natural Resource (Dataset ID: EMODPACE_NMDIS_L2A_SLEV_TG_TS)
Range:	longitude = 111.81 to 121.68°E, latitude = 9.55 to 38.87°N
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Data Access Form \| Files

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Server-side Functions

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Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

Web page authors can embed a graph of the latest data in a web page using HTML <img> tags.
Anyone can use ERDDAPs Slide Sorter to build a personal web page that displays graphs with the latest data (or other images or HTML content), each in its own, draggable slide.

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  StationName {
    String long_name "Station Name";
  }
  Provider {
    String long_name "Provider";
  }
  EDMO {
    Int16 actual_range 3336, 3336;
    String long_name "EDMO";
  }
  StationCountry {
    String long_name "Station Country (ISO)";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 _FillValue -9999.0;
    Float32 actual_range 9.55, 38.87;
    String axis "Y";
    String ioos_category "Location";
    String latitude_reference_datum "geographical coordinates, WGS84 projection";
    String long_name "Latitude";
    Float32 missing_value -9999.0;
    String source_name "Latitude (N)";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 _FillValue -9999.0;
    Float32 actual_range 111.81, 121.68;
    String axis "X";
    String ioos_category "Location";
    String latitude_reference_datum "geographical coordinates, WGS84 projection";
    String long_name "Longitude";
    Float32 missing_value -9999.0;
    String source_name "Longitude (E)";
    String standard_name "longitude";
    String units "degrees_east";
  }
  time {
    String _CoordinateAxisType "Time";
    String axis "T";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  parametersn {
    String long_name "Parameter (SN)";
  }
  parameterp01 {
    String long_name "Parameter (P01)";
  }
  SLEV {
    Float64 _FillValue 999.9;
    Float64 actual_range 21.0, 9999.0;
    String ep_parameter_group "Sea Level";
    String long_name "water surface height above a specific datum";
    String SDN "SDN:P02::ASLV";
    String source_variable_name "SLEV";
    String standard_name "water_surface_height_above_reference_datum";
    String units "cm";
  }
  unit {
    String long_name "Unit (P06)";
  }
  SLEV_QC {
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 1, 1;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used nominal_value interpolated_value missing_value";
    String long_name "water surface height above a specific datum quality flag";
    String units "1";
  }
  PSMSL {
    String long_name "PSMSL link";
  }
  GLOSS {
    String long_name "GLOSS link";
  }
  EP_PLATFORM_ID {
    String long_name "EP_PLATFORM_ID";
  }
  EP_PLATFORM_TYPE {
    String actual_range 
"TG
TG";
    String long_name "EP_PLATFORM_TYPE";
  }
  EP_PLATFORM_CODE {
    String long_name "EP_PLATFORM_CODE";
  }
  EP_PLATFORM_LINK {
    String long_name "EP_PLATFORM_LINK";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String contributor_name "Other";
    String contributor_url "http://www.cmoc-china.cn/";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "NMDIS";
    Float64 Easternmost_Easting 121.68;
    String EDMO "https://edmo.seadatanet.org/report/3336";
    Float64 geospatial_lat_max 38.87;
    Float64 geospatial_lat_min 9.55;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 121.68;
    Float64 geospatial_lon_min 111.81;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-04-19T23:43:17Z (local files)
2024-04-19T23:43:17Z https://erddap.emodnet-physics.eu/tabledap/EMODPACE_NMDIS_L2A_SLEV_TG_TS.das";
    String infoUrl "http://www.cmoc-china.cn/pages/dataService.html";
    String institution "National Marine Data and Information Service,Ministry of Natural Resource";
    String institution_edmo_code "3336";
    String institution_references "https://edmo.seadatanet.org/report/3336";
    String keywords "NMDIS, SLEV";
    String license "Creative Commons Attribution Share-Alike http://www.opendefinition.org/licenses/cc-by-sa";
    Float64 Northernmost_Northing 38.87;
    String quality_note "After decoding, format check, code conversion, standardization, automatic quality control, visual check, and calibration and so on, the standard dataset is formed. The quality control covers the range check, non-code check, visual check, seasonal check, station code check and visual graphic check, etc.";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 9.55;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "StationName";
    String summary "EMODPACE - NMDIS Water level data of Chinese Oceanographic Stations (monthly data)";
    String title "EMODPACE - NMDIS Water level data of Chinese Oceanographic Stations (monthly data)";
    Float64 Westernmost_Easting 111.81;
  }
}

Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP (external link)

Data Access Protocol (DAP) (external link)

and its selection constraints (external link)

The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.

(easy) You can get data by using the dataset's Data Access Form or Subset form. They make the URL for you.
(easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
(not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names, followed by a collection of constraints (e.g., variable<value), each preceded by '&' (which is interpreted as "AND").

For details, see the tabledap Documentation.

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